Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: OKCYOKCE06Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
572-201 A Luther OK 321J HD CARRIER LLC 536      
572-201 9 Luther OK 321J HD CARRIER LLC 536   2021-12-27   

Last updated: Sun, 06 Oct 2024 02:51:32 UTC

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